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authorIndu Bhagat <indu.bhagat@oracle.com>2025-07-25 01:47:20 -0700
committerIndu Bhagat <indu.bhagat@oracle.com>2025-07-25 01:47:20 -0700
commit095319fe532cf586dcda63d0927a907c83c696b1 (patch)
tree54f33dfd5f67aa67bfcf261780ad18a884d376cd /gdb/arch
parenta9bab7ab6e84d3a949938593bd10f2a420c73844 (diff)
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gas: sframe: command line option takes precedenceHEADmaster
over gas directive to emit .sframe section. Fix PR gas/33175 sframe: --gsframe=no does not disable when .cfi_sections directive with .sframe --gsframe=no should also disable generation of SFrame section when explicit CFI directive: .cfi_sections .sframe is specified in the input. This means we need to track whether SFrame generation was explicitly disabled by the user. Introduce a new enum to facilitate disambiguation between GEN_SFRAME_DEFAULT_NONE and GEN_SFRAME_DISABLED. While fixing the bug by adding the enum, keep the upcoming requirement in mind: we will also need to disambiguate between --enable-default-sframe and user-specified --gsframe/--gsframe=yes. The intent is to not display SFrame related warnings or errors like: as_bad (_(".sframe not supported for target")); for unsupported targets if --enable-default-sframe is in effect. This implies we need to have a four state enum ( GEN_SFRAME_DEFAULT_NONE, GEN_SFRAME_CONFIG_ENABLED, GEN_SFRAME_DISABLED, GEN_SFRAME_ENABLED) gas/ PR gas/33175 * dw2gencfi.c (cfi_finish): Check state of flag_gen_sframe to determine whether any SFrame section is generated. * as.h (enum gen_sframe_option): New definition. * as.c (parse_args): Keep track of whether the flag is explicitly enabled or disabled gas/testsuite/ PR gas/33175 * gas/cfi-sframe/cfi-sframe-common-1.d: Remove redundant --gsframe. * gas/cfi-sframe/cfi-sframe.exp: Add new test. * gas/cfi-sframe/cfi-sframe-common-1c.d: New test. No SFrame section if explicit --gsframe=no. * gas/cfi-sframe/cfi-sframe-common-1c.s: New test.
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